28709805

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 47142144

約数和(自身を除く): 18432339

約数列:

[1, 3, 5, 15, 73, 157, 167, 219, 365, 471, 501, 785, 835, 1095, 2355, 2505, 11461, 12191, 26219, 34383, 36573, 57305, 60955, 78657, 131095, 171915, 182865, 393285, 1913987, 5741961, 9569935, 28709805]

約数ペア:

[(1, 28709805), (3, 9569935), (5, 5741961), (15, 1913987), (73, 393285), (157, 182865), (167, 171915), (219, 131095), (365, 78657), (471, 60955), (501, 57305), (785, 36573), (835, 34383), (1095, 26219), (2355, 12191), (2505, 11461)]